Duplex road-grader drag.



No. 879,805. PATENTED FEB.18,'1908.

- G. ALEXANDER.

DUPLEX ROAD GRADER DRAG.

APPLICATION FILED SEPT. 3, 1907.

GEORGE ALEXANDER, OF STATE CENTER, IOWA.

DUPLEX ROAD-GRADER DRAG.

Specification of Letters Patent.

Patented Feb. 18, 1908.

Application filed September 3. 1907- Serial No. 391.727.

To all whom it may concern:

Be it known that I, GEORGE A EXANDER, a citizen of the United States,residing at State Center, in the county of Marshall and arrangement andcombination of two mating and reversely inclined frames and scrapers as"hereinafter set forth, pointed out in my claims and illustrated in theaccompanying drawings, in which Figure 1 18 a perspective view thatshows the complete structure as required for practical use. Fig. 2 is atransverse sectional V16W on the line at w of Fig. 1. F1g. 3 shows theinner and rear ends of the two frames 1nverted and flexibly connected bya chain.

The numerals 10 designate straight wooden front bars of the frames thatmay vary in length and width as desired, and 12 are the correspondingrear bars of the two uniform frames shown in Fig. 1. 10 and 12 are inparallel position and rigidly connected. by short cross bars 13 fixed ontheir tops in inclined positions at their ends and reinforced by braces14 as shown. To

- the lower parts of the front faces and lower edge portions of thefront bars 10 are fixed metal plates or scrapers 15.

The inner and rear end portions of the.

frames are flexibly connected by a chain 16, as shown in Fig. 3, and asrequired to allow them longitudinal and also up-and-down motion when inpractical operation. On the tops and central portions of the two framesare fixed cross bars 17, and on the said cross bars are fixed bearers 18and to said bearers is hinged a reach 19, as shown in Figs. 1 and 2, orin any suitable way as required to allow the frames independentlongitudinal motion and also vertical and oscillating motion when themachine is advanced on a roadway.

A drivers seat is fixed on the top and center of the reach 19. Longeyebolts 21 are fixed in the front and rear bars 10 and 12 Each pair ofbars of the two uniform and coupled frames to reinforce the frames andalso for pivotally connecting rods 22 to the frames. The rods areconnected at their front ends by a ring 23 and thus adapted forconnecting a doubletree thereto as required for hitching horses to thefront and center of the machine.

Having thus set forth the purpose of my invention and its constructionthe manner of its use and practical operation and utility will beobvious.

What I claim as new and desire to secure by Letters-Patent, is:

1. A duplex road scraper drag comprising two mating and reverselyinclined frames composed of parallel straight bars rigidly connected byshort cross bars fixed thereto, metal scrapers fixed to the front facesand lower edge portions of the parallel bars, a chain fixedto the innerends of the frames, reach bearers fixed on the tops of the two framesand a reach pivotally connected with the reach bearers, to operate asset forth.

2. A duplex road scraper drag comprising two mating and reverselyinclined frames composed of parallel straight bars rigidly connected byshort cross bars fixed thereto, metal scrapers fixed to the front facesand lower edge portions of the parallel bars, a chain fixed to the innerends of the frames, reach bearers fixed on the tops of'the two framesand a reach pivotally connected with the reach bearers, and means forhitching horses to the flexibly connected frames, to operate as setforth.

3. A duplex road scraper drag comprising two mating and reverselyinclined. frames composed of parallel straightbars rigidly connected byshort cross bars fixed thereto, metal scrapers fixed to the front facesand lower edge portions of the parallel bars, a chain fixed to the innerends of the frames,

reach bearers fixed on the tops of the two GEORGE ALEXANDER.

Witnesses I JOANNA ALEXANDER, MARGARETTA A. E. ALEXANDER.

